The term 'Baker Device' is a combination of two crossword solutions: 'SIEVE' and 'ANITA'. 'SIEVE' is a 5-letter word meaning a device with mesh or perforated bottom used to separate coarser from finer parts of a mixture. 'ANITA' is also a 5-letter word referring to a type of SIEVE invented by the British engineer, Sir Benjamin Baker, in 1885. The Baker Device is a combination of the two words, referring to the SIEVE invented by Sir Benjamin Baker.